Manual window shade and roller cut off knife



FIG. 1 is a front perspective view of a manual window shade and roller cut off knife embodying my design;

FIG. 2 is a side elevational view of the device shown in FIG. 1;

FIG. 3 is a front elevational view of the device;

FIG. 4 is an overhead plan view of the device;

FIG. 5 is a bottom plan view of the device; and

FIG. 6 is a rear elevational view of the device. 

The ornamental design for a manual window shade and roller cut off knife, substantially as shown. 